How Do You Tackle Obscure Bible Passages?

Post Author: Bill Pratt

Many passages in Scripture are relatively straight-forward to understand.  A person of even minimal intelligence can read and understand much of the Bible.  The greatest obstacle that faces readers of the Bible – the fact it was written in ancient Hebrew and Greek – is largely mitigated by the hard work of Hebrew and Greek language scholars who translate the words of the Bible into modern English.

However, even though we are able to read the contents of Scripture in our own language, we are still faced with obscure passages that seem to elude our understanding.  Why is this? 

The eighteenth century philosopher Johann Martin Chladenius pointed out that the problem is usually a lack of background knowledge.  Jean Grondin, in his book Introduction to Philosophical Hermeneutics, explores Chladenius’s insight:

The obscurity to which Chladenius here refers is that due to insufficient background knowledge. It is indeed often the case, especially with older texts, that the language seems completely clear, though the texts still remain unintelligible because we are lacking in historical or factual knowledge. In other words, we are unacquainted with the subject matter or with what the author really wanted to say.

At first, as I noted above, this kind of obscurity may seem rather trivial. Yet Chladenius here touches on an absolutely fundamental phenomenon of language. Language always tries to express something literally, but this “something” often enough remains in the dark, because the words do not occasion the same meaning or effect in the receiver as intended by the speaker. Chladenius views this as a purely linguistic process, as he explains while introducing his idea of hermeneutics as a universal science: “A thought that is to be conveyed to the reader by words often presupposes other conceptions without which it is not conceivable: if a reader is not already in possession of these conceptions, therefore, the words cannot effect the same result in him as in another reader who is thoroughly knowledgeable about these conceptions.”

When we read the Bible, we must remember that the individual biblical authors are assuming that their readers share a common background knowledge.  This background knowledge can include geography, political rulers, folklore, religious texts, poetry, agriculture, worldviews, and more.  As a modern reader, what hope do we have of knowing these things?

This is where good commentaries and Bible dictionaries come in.  These books provide the background information that enables a modern reader to better understand the ancient biblical writings.  They can provide us with keys to unlock the meanings of obscure passages.

When I sit down to read a difficult biblical passage, I will first read the passage, and then consult several commentaries or dictionaries to gain the needed background knowledge.  Several years ago, I bought the Logos Bible Software package, which enables me to consult dozens of commentaries on my PC.

Even though I have access to so many commentaries, I find myself going back to three of them over and over again:  The New American Commentary from Broadman & Holman Publishers; The IVP Bible Background Commentary: New Testament by Craig S. Keener, from InterVarsity Press; The Bible Knowledge Commentary: An Exposition of the Scriptures from Victor Books.  All of these commentaries do an excellent job of teaching the background knowledge needed to interpret Bible passages.

Whether you have these particular commentaries or not, it is imperative that you invest in resources that can teach you the background information you need to understand your Bible.  The serious student of the Bible cannot get along without them.

Are All Interpretations Equally Valid?

Post Author: Bill Pratt

Relativism is a constant and ever-present danger these days.  Today I’m speaking, in particular, about the interpretation of biblical texts.  When we open the Bible and read, what happens if we interpret the text differently from those around us?

There are scholars today who claim that nobody has the correct interpretation of a text, because there is no single correct interpretation.   In his book, Objectivity in Biblical Interpretation, Philosopher Tom Howe quotes writer James K. A. Smith as an example of this position:

To privilege one reading as normative (the one correct interpretation) would be to privilege one contingent situationality or tradition over another— a move that would be impossible to justify precisely because of the locatedness of any such justification. There is not a reading that is the reading of the world or a text.

Smith is saying that the tradition and situation in which a reader resides colors his interpretation.  Since each of us lives in a different situation and tradition, then each of our interpretations of a text are different, and none of them can claim to be the one correct interpretation.

Is this true?  Howe strongly disagrees:

According to this approach, conflicts are generated because of the differing “situationality” and “traditionality” that indicate the impossibility of a “privileged reading” or of the very existence of “the one correct interpretation.” . . .  Is there no such thing as the correct or the right interpretation of a text? If there is no “right” or “correct” interpretation, then the problem of conflicting interpretations seems to lose its meaning.

Conflicting interpretations create a problem only if there is an interpretation that is the right one. The fact of conflicting interpretations seems to create difficulty only if one attempts to judge between them in order to arrive at the meaning of the text. In fact, everyone who comments on this question believes that his own interpretation of the problem is the correct one. Even those who claim that differing historical, cultural, and linguistic situations render the notion of a privileged or normative or correct interpretation impossible believe that they have correctly interpreted the state of affairs.

They confidently declare that their interpretation of the problem of interpretation is the correct one, namely, that no one can claim to have “the one correct interpretation.” Those who claim that it is impossible “to privilege one reading as normative” privilege their own reading as normative. When, in the above quote, Smith declares, “There is not a reading that is the reading of the world or a text,” he presents his own reading of the world as the reading of the world.

Smith’s view ultimately self-destructs and, therefore, cannot be true.  Smith wants us to believe that his interpretation is the correct one, all the while arguing that no interpretation can be the correct one.  This is illustrative of the inner rot of any relativistic theory.  By denying objectivity, by denying that absolutes exist, the relativist always wants an exemption for their position.  They seem to be saying, “Every view out there is relative, except mine.  I am the only who has a privileged and absolute position.”

Interpretation of the Bible can be difficult, and there are cultural, linguistic, and historical barriers to overcome, but to throw in the towel and say that no interpretation is correct is simply self-defeating.  The correct interpretation is there, but we have to work for it.

Does God’s Mercy Cancel Out His Justice?

Post Author: Bill Pratt

Christians claim that God is both merciful and that he is just, but how can both of these be true?  Doesn’t mercy cancel justice, or justice cancel mercy?

Thomas Aquinas, one of the greatest church fathers, addressed this very issue in his monumental work, Summa Theologica.  Thomas’s approach in Summa Theologica was to present an objection, and then answer the objection.  Here is the objection:

Further, mercy is a relaxation of justice. But God cannot remit what appertains to His justice. For it is said (2 Tim. 2:13): If we believe not, He continueth faithful: He cannot deny Himself. But He would deny Himself, as a gloss says, if He should deny His words. Therefore mercy is not becoming to God.

In other words, God is just and God cannot deny himself.  If God is just, and mercy is a relaxation of justice, then God cannot be merciful.  How does Thomas answer this objection?

God acts mercifully, not indeed by going against His justice, but by doing something more than justice; thus a man who pays another two hundred pieces of money, though owing him only one hundred, does nothing against justice, but acts liberally or mercifully. The case is the same with one who pardons an offence committed against him, for in remitting it he may be said to bestow a gift. Hence the Apostle calls remission a forgiving: “Forgive one another, as Christ has forgiven you” (Eph. 4:32). Hence it is clear that mercy does not destroy justice, but in a sense is the fulness thereof. And thus it is said: “Mercy exalteth itself above judgment” (Jas. 2:13).

Philosopher Peter Kreeft, commenting on Thomas’s words in his A Summa of the Summa, adds that

Mercy is expressed in forgiveness.  In the word “forgive” is the word “give.”  For forgiveness is not primarily an attitude or feeling, but a gift,  remitting of debt, and therefore it costs the giver something.  God’s forgiveness of human sin cost him dearly on Calvary.  Both justice and mercy were satisfied there.

Further building on the interaction of mercy and justice, Kreeft explains that

mercy, as a property of love, is more primordial than justice.  Justice [as God applies it to mankind] is finite, and proportioned to desert; love can be infinite.  Our very existence is due to love and generosity, not justice, for we were not even there to deserve anything, even existence, before God gave us the gift of existence.

In summary, mercy is more basic than justice, and mercy can therefore complete justice.  To be truly merciful is not to negate justice, but to fulfill it.  Nothing better illustrates this concept than what God did on the cross for mankind.

How Did Canonization of the New Testament Happen?

Post Author: Bill Pratt

Canonization of the New Testament did not happen overnight.  The books of the New Testament were written over several decades, with the final books probably being completed just before A.D. 100.  However, documents traveled slowly 2,000 years ago, and it took many years for the books, later to be recognized as the New Testament, to circulate throughout the Roman Empire.  It was a long and gradual process.

The early church, using several criteria, worked through the process of recognizing the inspired books of the New Testament during the first few centuries after Christ’s death.  For a brief summary of the process, I quote church historian J. N. D. Kelly from his book Early Christian Doctrines:

The main point to be observed is that the fixation of the finally agreed list of books, and of the order in which they were to be arranged, was the result of a very gradual process. . . . Three features of this process should be noted.

First, the criterion which ultimately came to prevail was apostolicity. Unless a book could be shown to come from the pen of an apostle, or at least to have the authority of an apostle behind it, it was peremptorily rejected, however edifying or popular with the faithful it might be.

Secondly, there were certain books which hovered for long time on the fringe of the canon, but in the end failed to secure admission to it, usually because they lacked this indisputable stamp. . . .

Thirdly, some of the books which were later included had to wait a considerable time before achieving universal recognition. . . . By gradual stages, however, the Church both in East and West arrived at a common mind as to its sacred books. The first official document which prescribes the twenty-seven books of our New Testament as alone canonical is Athanasius’s Easter letter for the year 367, but the process was not everywhere complete until at least a century and a half later.

Not only did the process take a while due to practical communication obstacles, the early church was trying to be extremely careful about recognizing the canon.  Their desire was to get it right, and for that reason alone, we should be thankful for their approach to this process.

One final comment about the canon.  For some of you, this information may seem dry and even boring.  After all, you might be thinking, how does this impact my Christian walk today?  Aside from the fact that you should just want to know about the origins of the Bible, there is another more practical reason.  If you don’t know what really happened, then you won’t be able to recognize revisionist historians who grossly distort or outright lie about Christian origins.

When The Da Vinci Code was published, one of the biggest misrepresentations of Dan Brown was the claim that the church Council of Nicaea voted on which gospels (he claims there were 80 or so to choose from) to include in the New Testament, based on the council’s desire to make Jesus a god.  First of all, this never happened, and secondly, it completely fails to accurately portray the actual process of canonization.  Brown got it completely wrong, but the Christian ignorant of church history would never know that.

C. S. Lewis once said that good philosophy must exist, if for no other reason, to counter bad philosophy.  Likewise, true church history must exist, if for no other reason, to counter false church history.

Is the Biblical Canon Closed? Part 2

Post Author: Bill Pratt

This is a profound question for the Christian church.  Every year, there are new cults that emerge where a charismatic leader claims that he or she has received a revelation from God that must be added to the biblical canon.  In fact, this is exactly what happened almost 200 years ago when Joseph Smith claimed to have received revelation from God which became the Book of Mormon.

In part 1, we examined why the canon is theologically closed.  In this second post, we will look at why the canon is historically closed, and then why the canon is still only hypothetically open.  Here are Geisler and Nix again from their book A General Introduction to the Bible:

Historically the canon is closed. For there is no evidence that any such special gift of miracles has existed since the death of the apostles. The immediate successors of the apostles did not claim new revelation, nor did they claim these special confirmatory gifts. In fact, they looked on the apostolic revelation as full and final. When new cults have arisen since the time of the apostles, their leaders have claimed to be apostles in order that their books could gain recognition. Historically, the canon is closed with the twenty-seven books written in the apostolic period. They alone are and have been the books of the canon through all the intervening centuries. No other non-apostolic books have been accepted since the earliest centuries, and no new books written by the apostles have come to light. In His providence, God has guided the church in the preservation of all the canonical books.

The canonical books are those necessary for faith and practice of believers of all generations. It seems highly unlikely that God would inspire a book in the first century that is necessary for faith and practice and then allow it to be lost for nearly two thousand years. From a providential and historical stand-point the canon has been closed for nearly two thousand years.

But is the canon hypothetically open?  If so, what does this mean?

Hypothetically the canon could be open. It is theoretically possible that some book written by an accredited apostle or prophet from the first century will yet be found. And what if such a prophetic book were found? The answer to this question will depend on whether or not all prophetic books are canonic. If they are, as has been argued, then this newly discovered prophetic book should be added to the canon. But that is unlikely for two reasons. First, it is historically unlikely that such a new book intended for the faith and practice of all believers, but unknown to them for two thousand years, will suddenly come to light. Second, it is providentially improbable that God would have inspired but left unpreserved for two millennia what is necessary for the instruction of believers of all generations.

Geisler and Nix, therefore, leave open the possibility that a first-century book could be found that belongs in the canon, but they think it is highly unlikely to occur.  Given the death of Jesus’s apostles in the first century, and given that Jesus was supposed to be the final revelation of God, Geisler and Nix reject the possibility that a new prophet will produce a new work today.  A new prophet would first have to make the case that the canon was not closed in the first century, and then demonstrate the miracles that go along with being a legitimate representative of God.

It is important to note, in closing, that neither Muslims, nor Mormons, nor any other religious group that has its roots in Christianity, has ever had a prophet who successfully performed miracles to prove that they were truly from God.  Hasn’t happened.

Is the Biblical Canon Closed? Part 1

Post Author: Bill Pratt

This is a profound question for the Christian church.  Every year, there are new cults that emerge where a charismatic leader claims that he or she has received a revelation from God that must be added to the biblical canon.  In fact, this is exactly what happened almost 200 years ago when Joseph Smith claimed to have received revelation from God which became the Book of Mormon.

Norman Geisler and William Nix tackle this very question in their book A General Introduction to the Bible.  To the question of whether the biblical canon is closed, Geisler and Nix answer, “To this one should respond that the canon is closed theologically and historically, and is open only hypothetically.”

Theologically the canon is closed. God has inspired only so many books and they were all completed by the end of the apostolic period (first century A.D.). God used to speak through the prophets of the Old Testament, but in the “last days” he spoke through Christ (Heb. 1:1) and the apostles whom He empowered with special signs (miracles). But because the apostolic age ended with the death of the apostles (Acts 1:22), and because no one since apostolic times has had the signs of a true apostle” (2 Cor. 12:12) whereby they can raise the dead (Acts 20:10–12) and perform other unique supernatural events (Acts 3:1–10; 28:8–9), it may be concluded that God’s “last day” revelation is complete (see Acts 2:16–18).

This does not mean that God’s visitations are over, because there are many other things yet to be fulfilled (see Acts 2:19–20). Nor does it mean that there will be no new understanding of God’s truth after the first century. It simply means that there is no new revelation for the church. Indeed, this does not necessarily imply that there have been no miracles since the first century. Supernatural acts will be possible as long as there is a Supernatural Being (God). It is not the fact of miracles that ceased with the apostles but the special gift of miracles possessed by a prophet or apostle who could claim, like Moses, Elijah, Peter, or Paul, to have a new revelation from God. Such a prophet or apostle could back up his claim by dividing a sea, bringing down fire from heaven, or raising the dead. These were special gifts bestowed on prophets (apostles), and they are not possessed by those who are not the recipients of new revelation (Acts 2:22; Heb. 2:3–4).

It is interesting to note that both Muhammad and Joseph Smith were rejected as prophets by most Christians of their day because they were unable to perform miraculous feats such as dividing seas, bringing down fire from heaven, or raising the dead.  Their miraculous claims centered around supernatural visitations from God or angels, who allegedly gave them new revelation.  This was not sufficient to back up their claims of being prophets of God.

I have often been asked how I would deal with someone who claimed to have a brand new message from God.  I would say this to the person: “Show me the miracles.  Show me the signs.  Heal the deaf and blind.  Raise some people from the dead.  Until you do those kinds of things, I won’t even consider your new revelation from God.”  Muhammad and Joseph Smith were likewise asked to do those things, and they could produce nothing of the kind.

In part 2, we will look at why the canon is historically closed.

Why Are the Books in the Bible, in the Bible?

Post Author: Bill Pratt

The collection of 66 books, which constitute the Christian Bible, are recognized by Roman Catholics, Protestants, and Eastern Orthodox as being inspired by God, and therefore belonging to the canon of Scripture.  Roman Catholics and Eastern Orthodox recognize an additional dozen or so books (depending on how you count them), which are called the deuterocanonical (second canon) books, but Protestants do not recognize those books (neither do Jews).  I do not intend to treat the deuterocanonical books in this post, however, as that is a subject for another day.

One of the most fundamental questions we can ask about these books is why they are in the Bible.  Why are they canonical?  The first thing we need to distinguish is the difference between what determines a book to be canonical versus how a book is recognized as canonical.

Norman Geisler and William Nix explain the difference in their volume A General Introduction to the Bible:

Canonicity is determined by God –  Actually, a canonical book is valuable and true because God inspired it. That is, canonicity is determined or fixed conclusively by authority, and authority was given to the individual books by God through inspiration. The real question is not where a book received its divine authority, for that can only come from God; but how did men recognize that authority?

Canonicity is recognized by men of God –  Inspiration determines canonicity. If a book was authoritative, it was so because God breathed it and made it so. How a book received authority, then, is determined by God. How men recognize that authority is another matter altogether.  As J. I. Packer notes, “The Church no more gave us the New Testament canon than Sir Isaac Newton gave us the force of gravity. God gave us gravity, by His work of creation, and similarly He gave us the New Testament canon, by inspiring the individual books that make it up.”

How did ancient Jews and Christians, then, recognize that a book was inspired by God?  In the simplest terms, a book was recognized as inspired by God if it was written by a prophet of God.  Note that this is a necessary, but not sufficient condition; at a minimum, propheticity of a book is needed.  Geisler and Nix explain:

In brief, a book is canonical if it is prophetic, that is, if it was written by a prophet of God. In other words, propheticity determines canonicity. Of course one did not have to belong to the school of the prophets begun by Samuel (1 Sam. 19:20) or to be a disciple (“son”) of a prophet (2 Kings 2:3). All one needed was a prophetic gift as Amos (7:14) or Daniel (7:1) possessed. A prophet was a mouthpiece of God. He was one to whom God spoke in visions, dreams, and sundry ways. Even kings such as David (2 Sam. 23:1–2) and Solomon (1 Kings 9:2) were prophets in this sense. It was necessary to have prophetic gifts in order to write canonical Scripture, because all inspired writing is “prophetic” (Heb. 1:1; 2 Pet. 1:19–20).

Again, God determines canonicity by inspiring a book to be written by a prophet of God.  The people of God’s job was to recognize whether a true prophet of God actually wrote the book.

Why Should You Go to Church?

Post Author: Bill Pratt

I am speaking to the born-again Christian.  Why should you go to church?  Unfortunately, there are many of you out there who have decided that you no longer need to attend church, for whatever reason.  You worship in your home, you read your Bible, you pray, so why do you need to get out of bed on Sunday mornings and go to church?

There are many good reasons for going to church, but I want to talk about one reason in particular.  Here it is: your salvation may stall out, or, at least, fail to mature as quickly.  Yes, your salvation.  I know some of you are screaming, “Once saved, always saved!  Going to church has nothing to do with my salvation!”

You have forgotten that salvation consists of three parts: justification, sanctification, and glorification.  It is true that your justification is a one-time event, but your sanctification is a process that occurs over the remainder of your life.  The New Testament actually spends far more time talking about your sanctification than your justification!

Sanctification is the process by which you cooperate with the Holy Spirit to become more Christ-like.  To become more Christ-like is to obey God’s will, to strive every day, with the Holy Spirit’s help, to do as the Father commands.  If you are a Christian who does not want to do what the Father commands more and more every day, you have completely missed the plain message of the Bible.

So why might your sanctification stall out when you are not in church?  Because you are not hearing God’s commands preached, in person, at all.  How can you follow God’s commands for your life if you never hear them?

Some of you are again arguing with me.  “But I read the Bible, I listen to podcast sermons, I watch preachers on TV.  So, I am hearing God’s will for my life.  I am hearing his commands.”  Yes, that is true.  Doing those things are certainly better than doing nothing, and you certainly sanctify your life by doing those things, but not nearly as effectively and as powerfully as hearing the Word of God preached, in person, face to face.

Why do people pay crazy amounts of money to go see rock concerts, to see comedians perform on-stage, to attend NFL games?  After all, you can hear rock music for free, you can hear comedians for free, and you can watch NFL games for free.  Why pay for these things?  Because attending a live event is so much more powerful an experience.

I have attended a couple of NFL playoff games, and you cannot imagine the electricity in the stadium.  The crowd is cheering, the stands are thundering – you can feel the excitement.  It sticks with you and you don’t forget it.  Why?  Because it’s live!

Like it or not, human beings were designed by God to react more strongly, more powerfully, to other people when they are live and in person.  A powerful sermon will absolutely stick with you for a longer period of time if you hear it in person; it will have a greater impact on your life.  God’s commands will resonate more deeply in your soul when you hear it coming from your pastor standing 40 feet from you than when you see a preacher say the exact same thing on TV.

Nothing can replace the experience of hearing the Word of God in person every week.  I listen to hours of Christian messages in the car every week driving back and forth from work, but when I sit in my seat on Sunday morning and my pastor starts preaching the Word of God, it hits me in the chest like a podcast rarely does.  If you’re laying in bed Sunday mornings, you are robbing yourself of sanctification.  How sad.  Don’t you want to grow?  Don’t you want to hear “Well done, good and faithful servant?”

Why Should Christians Study Philosophy?

Post Author: Bill Pratt

In some Christian circles, there is great distrust of philosophy.  Of course, this is not just a Christian issue, as there are many non-Christians who also dismiss philosophy as a waste of time, at best, and dangerous, at worst.  Those who think it is a waste of time sometimes claim that the vast majority of people know nothing about philosophies or philosophers, and that philosophy, therefore, has a negligible effect on society.

Is that true?  Historian Jonathan Israel, an expert on the European Enlightenment, disagrees.  Read what Israel has to say about the role of philosophy in the Enlightenment:

[T]hose who inveighed most obsessively against new ideas before and after 1789 also insisted that most people then, as now, neither knew nor cared anything about ‘philosophy.’  Yet practically all late eighteenth- and early nineteenth-century commentators were convinced, and with some reason, that while most failed to see how philosophy impinged on their lives, and altered the circumstances of their time, they had all the same been ruinously led astray by ‘philosophy’; it was philosophers who were chiefly responsible for propagating the concepts of toleration, equality, democracy, republicanism, individual freedom, and liberty of expression and the press, the batch of ideas identified as the principal cause of the near overthrow of authority, tradition, monarchy, faith, and privilege.  Hence, philosophers specifically had caused the revolution.

Throne, altar, aristocracy, and imperial sway, according to spokesmen of the Counter-Enlightenment, had been brought to the verge of extinction by ideas which most people know absolutely nothing about. Most of those who had supported what conservative and middle-of-the road observers considered corrosive and pernicious democratic concepts had allegedly done so unwittingly, or without fully grasping the real nature of the ideas on which the ringing slogans and political rhetoric of the age rested. Yet if very few grasped or engaged intellectually with the core ideas in question this did not alter the fact that fundamentally new ideas had shaped, nurtured, and propagated the newly insurgent popular rhetoric used in speeches and newspapers to arouse the people against tradition and authority. Indeed, it seemed obvious that it was ‘philosophy’ which had generated the revolutionary slogans, maxims, and ideologies of the pamphleteers, journalists, demagogues, elected deputies, and malcontent army officers who, in the American, French, Dutch, and Italian revolutions of the 1770s, 1780s, and 1790s, as well as the other revolutions which followed proclaimed and justified a fundamental break with the past.  

According to Israel, the philosophers supplied the ideas that provoked the revolutions of the Enlightenment.  Those who did not listen to what the philosophers were saying were ultimately overrun by their ideas anyway.  Is this still the case today?  Professor Thomas Howe would say “yes”: 

The significance of these observations for our study is that the same is true today. The influence of philosophy on the day-to-day lives of the people is by far not negligible, and this is even more true for Christians. . . . For the Christian, philosophy is communicated to the congregation through the pulpit. Pastors read and study and attempt to keep up on current events.  But it is precisely in the books, journals, and magazines they read that philosophy is communicated to them and through them to their congregations—and this happens today, as it did leading up to the Enlightenment, without any realization that it is going on. In terms of a basic principle we might say, the less familiar we are with philosophy, the more likely it is to influence us without our being aware.

Should all Christians rush out and take philosophy classes?  Probably not, but some of us should, and probably many more than currently are.  Those who have no interest in philosophy should, at a minimum, be supportive of those Christians who do have interest.  They are watchmen on the tower, and we need them.

Are the Synoptic Gospels Interdependent? Part 2

Post Author: Bill Pratt

In part 1 we looked at Professor of New Testament Daniel Wallace’s first two arguments for the interdependence of the synoptic gospels (the first three gospels).  Now we pick up with his third and fourth arguments.

The third argument is the agreement in parenthetical material.  Wallace quotes Robert H. Stein, who wrote, “One of the most persuasive arguments for the literary interdependence of the synoptic Gospels is the presence of identical parenthetical material, for it is highly unlikely that two or three writers would by coincidence insert into their accounts exactly the same editorial comment at exactly the same place.”

Wallace gives examples of these parenthetical statements:

One of the most striking of these demonstrates, beyond the shadow of a doubt, the use of written documents: “When you see the desolating sacrilege . . . (let the reader understand) . . . ” (Matt 24:15/Mark 13:14).  It is obvious that this editorial comment could not be due to a common oral heritage, for it does not say, “let the hearer understand.” Compare also Matt 9:6/Mark 2:10/Luke 5:24; Matt 27:18/Mark 15:10.

The fourth argument is Luke’s preface:

Luke begins his gospel in a manner similar to ancient historians: “Inasmuch as many have undertaken to compile a narrative . . . it seemed good to me also . . . to write an orderly account for you . . . .”  In the least this implies two things: (1) Luke was aware of written (and oral) sources based on eyewitness accounts; (2) Luke used some of these sources in the composition of his gospel.

Wallace again quotes Robert Stein to summarize what conclusions come from these four arguments:

We shall see later that before the Gospels were written there did exist a period in which the gospel materials were passed on orally, and it is clear that this oral tradition influenced not only the first of our synoptic Gospels but the subsequent ones as well.  As an explanation for the general agreement between Matthew-Mark-Luke, however, such an explanation is quite inadequate. There are several reasons for this.

For one the exactness of the wording between the synoptic Gospels is better explained by the use of written sources than oral ones.  Second, the parenthetical comments that these Gospels have in common are hardly explainable by means of oral tradition.  This is especially true of Matthew 24:15 and Mark 13:14, which addresses the readers of these works! Third and most important, the extensive agreement in the memorization of the gospel traditions by both missionary preachers and laypeople is conceded by all, it is most doubtful that this involved the memorization of a whole gospel account in a specific order.  Memorizing individual pericopes, parables, and sayings, and even small collections of such material, is one thing, but memorizing a whole Gospel of such material is something else. The large extensive agreement in order between the synoptic Gospels is best explained by the use of a common literary source.  Finally, as has already been pointed out, whereas Luke 1:2 does refer to an oral period in which the gospel materials were transmitted, Luke explicitly mentions his own investigation of written sources.